According to my theory of human evolution, a liking for ceremonies evolved because ceremonies increased innovation. Ceremonies increase demand for hard-to-make stuff, which helps the most skilled artisans make a living.
Stephanie Laursen, a letterpress printer, is an example. Letterpress printing is difficult. Larsen is a skilled artisan. She makes a living from wedding invitations. Without wedding ceremonies, she would probably be doing something else.
She could be making high-quality posters or other printed material for marketing campaigns. I don’t think marketing campaigns are ceremonies.